User's Manual

Appendix B e Troubleshooting 107
Problems with the Gigaset 2420 Cordless Handset
The handset is dead. There is no dial tone. The display is blank. No buttons operate.
• The battery pack on the handset is completely drained. Make sure that the battery in the handset is fully charged.
•• There is no power to the desk station. Verify that the power supply to the desk station is plugged into a functioning
electrical outlet.
•• If one of the desk stations or cordless handsets seems unresponsive, unplug and replug the desk station's power cord or
remove and replace the cordless handset's batteries to refresh the system.
WARNING: Any unsaved changes will be lost.
There is no audible ringing signal but the status lights behave as if there is an incoming call.
Verify that the ringer volume is not set to MUTE.
There is a problem with one of the two lines. There is dial tone on only one line. Calls are being
received on only one line.
e If you have two lines from the telephone company, verify that both of them are in service. Check the status of the lines witn
other cordless handset users or the desk station.
•• Verify that Trunk Access and Group Ringing are correctly configured for your handset.
108 Appendix B •• Troubleshooting
The Caller ID information does not appear on the display.
•• Caller ID is an optional service provided by your telephone company. Make sure that you have subscribed to this service
and that the telephone company has installed it on both of your lines.
• Make sure that the Caller ID feature is enabled and correctly configured on your handset.
Certain telephone numbers cannot be dialed.
It is possible that the handset has been configured so that specific numbers or types of number cannot be dialed. These are called
barred numbers. Verify that you are not attempting to call barred numbers. For information about Call Barring, see Chapter 7
Customizing Your System.
The display messages on the handset appear to be presented in a foreign language.